Home / 729,157.44-1,006,087.04-419,000.11

Finding the Fourth Proportional to 729,157.44, 1,006,087.04 and 419,000.11

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Solution

The fourth proportional to 729,157.44, 1,006,087.04 and 419,000.11 is: 578,133.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,157.44 : 1,006,087.04 = 419,000.11 : x
  2. Step 2: Convert to fraction form
    729,157.44/1,006,087.04 = 419,000.11/x
  3. Step 3: Cross multiply
    729,157.44x = 1,006,087.04 × 419,000.11
  4. Step 4: Simplify right side
    729,157.44x = 421,550,582,025.16
  5. Step 5: Solve for x
    x = 421,550,582,025.16/729,157.44
  6. Step 6: Final answer
    x = 578,133.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.